diff --git a/roles/run-tempest/defaults/main.yaml b/roles/run-tempest/defaults/main.yaml
index c89eb93..06918b5 100644
--- a/roles/run-tempest/defaults/main.yaml
+++ b/roles/run-tempest/defaults/main.yaml
@@ -2,3 +2,4 @@
 tempest_test_regex: ''
 tox_envlist: smoke
 tempest_black_regex: ''
+tox_extra_args: ''